LZTR1 and infection: This showed that, for the first 24 hr following infection, the accumulation of each virally-encoded mRNA was similar in ARP2-knockdown and control cells, except for the RSV F and L mRNA levels which were slightly but significantly reduced in siARP2 depleted cells; unexpectedly, the NS1 and NS2 mRNA levels were slightly but significantly lower in siControl treated cells than in siARP2 cells.